Home / 22,248.19-30,702.90-12,689.18

Finding the Fourth Proportional to 22,248.19, 30,702.90 and 12,689.18

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Solution

The fourth proportional to 22,248.19, 30,702.90 and 12,689.18 is: 17,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,248.19 : 30,702.90 = 12,689.18 : x
  2. Step 2: Convert to fraction form
    22,248.19/30,702.90 = 12,689.18/x
  3. Step 3: Cross multiply
    22,248.19x = 30,702.90 × 12,689.18
  4. Step 4: Simplify right side
    22,248.19x = 389,594,407.66
  5. Step 5: Solve for x
    x = 389,594,407.66/22,248.19
  6. Step 6: Final answer
    x = 17,511.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.